The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1993
Filed:
Sep. 28, 1992
Applicant:
Inventor:
Michael A Choma, Dearborn Heights, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123568 ;
Abstract
An exhaust gas recirculation (EGR) valve has a gas force balancing diaphragm which equalizes the gas pressure forces acting upon the valve's metering element so as to minimize the force required to position the metering element, which is operated by an external actuator.
Choma, Michael. (1993). Pressure balanced exhaust gas recirculation valve (U.S. Patent No. 5255659). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5255659
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile